mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-19 03:05:14 +00:00
81 lines
2.9 KiB
C
81 lines
2.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2010, Swedish Institute of Computer Science
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \file
|
||
|
|
* Declarations for the result acquisition API.
|
||
|
|
* \author
|
||
|
|
* Nicolas Tsiftes <nvt@sics.se>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef RESULT_H
|
||
|
|
#define RESULT_H
|
||
|
|
|
||
|
|
#include "index.h"
|
||
|
|
#include "relation.h"
|
||
|
|
#include "storage.h"
|
||
|
|
|
||
|
|
#define RESULT_TUPLE_INVALID(tuple) ((tuple) == NULL)
|
||
|
|
#define RESULT_TUPLE_SIZE(handle) (handle).rel->row_length
|
||
|
|
|
||
|
|
typedef unsigned char *tuple_t;
|
||
|
|
|
||
|
|
#define DB_HANDLE_FLAG_INDEX_STEP 0x01
|
||
|
|
#define DB_HANDLE_FLAG_SEARCH_INDEX 0x02
|
||
|
|
#define DB_HANDLE_FLAG_PROCESSING 0x04
|
||
|
|
|
||
|
|
struct db_handle {
|
||
|
|
index_iterator_t index_iterator;
|
||
|
|
tuple_id_t tuple_id;
|
||
|
|
tuple_id_t current_row;
|
||
|
|
relation_t *rel;
|
||
|
|
relation_t *left_rel;
|
||
|
|
relation_t *join_rel;
|
||
|
|
relation_t *right_rel;
|
||
|
|
relation_t *result_rel;
|
||
|
|
attribute_t *left_join_attr;
|
||
|
|
attribute_t *right_join_attr;
|
||
|
|
tuple_t tuple;
|
||
|
|
uint8_t flags;
|
||
|
|
uint8_t ncolumns;
|
||
|
|
void *adt;
|
||
|
|
};
|
||
|
|
typedef struct db_handle db_handle_t;
|
||
|
|
|
||
|
|
db_result_t db_get_value(attribute_value_t *value,
|
||
|
|
db_handle_t *handle, unsigned col);
|
||
|
|
db_result_t db_phy_to_value(attribute_value_t *value,
|
||
|
|
attribute_t *attr, unsigned char *ptr);
|
||
|
|
db_result_t db_value_to_phy(unsigned char *ptr,
|
||
|
|
attribute_t *attr, attribute_value_t *value);
|
||
|
|
long db_value_to_long(attribute_value_t *value);
|
||
|
|
db_result_t db_free(db_handle_t *handle);
|
||
|
|
|
||
|
|
#endif /* !RESULT_H */
|